Yeah battles can feel very 'swingy' at times, some bosses took me 3 to 4 tries (talking about the build released to the public here), that fight against Aoba is insane. I don't mind the challenge at all but I had to choose which puzzle blocks to move very carefully for most fights, even against the generic mobs, cuz every fight can go south really fast. I had to think hard about which skills to take and their synergies, which equipment to use, grind for items to do all quests, healing after every battle, upgrading armor whenever I could, it felt a bit like an old school RPG not gonna lie.